Is this possible – widget

My client has, let’s say, 13 images he wants people to see. But we only wnat to have 5 on the age at any one time. They are 150×150 thumbnails in a sidebar, showing vertically . We only want to use 5 as that balances well with the text. So far so good. However, we’d really love it if, when you click on an images, ALL 13 images are available to scroll through. Is this possible?
many thanks